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William Blair & Company Portfolio holdings
AUM
$38.4B
1-Year Est. Return
25.71%
This Fund
S&P 500
This Quarter
Est. Return
+3.1%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$34.4B
AUM Growth
+$328M
(+0.96%)
Cap. Flow
-$18.6M
Cap. Flow
% of AUM
-0.05%
Top 10 Holdings %
Top 10 Hldgs %
25.12%
Holding
1,903
New
83
Increased
650
Reduced
792
Closed
87
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
XYZ
Block Inc
XYZ
|
+$80.6M |
| 2 |
Blackrock
BLK
|
+$53.4M |
| 3 |
CWAN
Clearwater Analytics
CWAN
|
+$48.5M |
| 4 |
NVIDIA
NVDA
|
+$47.9M |
| 5 |
BWX Technologies
BWXT
|
+$47M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
DexCom
DXCM
|
+$37.7M |
| 2 |
CoStar Group
CSGP
|
+$34.5M |
| 3 |
Vertex Pharmaceuticals
VRTX
|
+$30M |
| 4 |
Booz Allen Hamilton
BAH
|
+$29.1M |
| 5 |
Idexx Laboratories
IDXX
|
+$26.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 28.35% |
| 2 | Financials | 13.43% |
| 3 | Healthcare | 12.44% |
| 4 | Industrials | 11.81% |
| 5 | Consumer Discretionary | 8.44% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1026
Applied Digital
APLD
$8.81B
| $628K | ﹤0.01% |
82,260
+67,160
| +445% | +$558K |
|
1027
Sprott Physical Silver Trust
PSLV
$13.3B
| $624K | ﹤0.01% |
64,641
+16
| +0% | +$169 |
|
|
AZEK
1028
DELISTED
The AZEK Co
AZEK
| $621K | ﹤0.01% |
13,077
-16,498
| -56% | -$788K |
|
1029
AMN Healthcare
AMN
$1.34B
| $618K | ﹤0.01% |
25,828
-23,896
| -48% | -$759K |
|
1030
Veracyte
VCYT
$3.42B
| $615K | ﹤0.01% |
15,542
| – | – |
|
1031
iShares US Healthcare ETF
IYH
$3.77B
| $614K | ﹤0.01% |
10,546
-1,410
| -12% | -$87.1K |
|
1032
John Hancock Multifactor Mid Cap ETF
JHMM
$6.18B
| $612K | ﹤0.01% |
10,243
-371
| -3% | -$22.9K |
|
1033
Pacer Trendpilot US Large Cap ETF
PTLC
$3.39B
| $608K | ﹤0.01% |
11,371
| – | – |
|
1034
Schwab Emerging Markets Equity ETF
SCHE
$12.9B
| $606K | ﹤0.01% |
22,755
+110
| +0.5% | +$3.11K |
|
1035
Boot Barn
BOOT
$4.92B
| $606K | ﹤0.01% |
3,989
+2,674
| +203% | +$395K |
|
1036
VanEck Junior Gold Miners ETF
GDXJ
$8.33B
| $603K | ﹤0.01% |
14,110
| – | – |
|
1037
MSCI
MSCI
$41.8B
| $602K | ﹤0.01% |
1,004
-15
| -1% | -$9K |
|
1038
Antero Resources
AR
$11.3B
| $601K | ﹤0.01% |
+17,151
| New | +$519K |
|
1039
AptarGroup
ATR
$8.43B
| $599K | ﹤0.01% |
3,815
| – | – |
|
1040
MediaAlpha
MAX
$813M
| $599K | ﹤0.01% |
+53,066
| New | +$763K |
|
1041
Manulife Financial
MFC
$72.9B
| $599K | ﹤0.01% |
19,501
+64
| +0.3% | +$1.98K |
|
1042
ImmunityBio
IBRX
$8.11B
| $598K | ﹤0.01% |
233,500
+26,700
| +13% | +$111K |
|
1043
Ralph Lauren
RL
$23.1B
| $597K | ﹤0.01% |
2,584
+688
| +36% | +$147K |
|
1044
Middleby
MIDD
$5.29B
| $596K | ﹤0.01% |
4,398
+163
| +4% | +$22.5K |
|
1045
iShares Core MSCI Europe ETF
IEUR
$9.15B
| $595K | ﹤0.01% |
11,028
+340
| +3% | +$19.4K |
|
1046
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
| $593K | ﹤0.01% |
5,132
-123
| -2% | -$14.4K |
|
1047
Globus Medical
GMED
$11.5B
| $593K | ﹤0.01% |
7,164
-4,160
| -37% | -$328K |
|
1048
Monster Beverage
MNST
$91.4B
| $591K | ﹤0.01% |
22,502
-1,068
| -5% | -$28.3K |
|
1049
SPS Commerce
SPSC
$2.86B
| $590K | ﹤0.01% |
3,209
-15
| -0.5% | -$2.81K |
|
1050
First Trust Financials AlphaDEX Fund
FXO
$1.15B
| $590K | ﹤0.01% |
10,895
| – | – |
|
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William Blair & Company's Q4 2024 Portfolio in Review
As of Q4 2024, William Blair & Company held 1,903 positions worth $34.4B, up 0.96% from $34.1B the previous quarter. Its ten largest holdings account for 25% of the portfolio.
William Blair & Company's Q4 2024 filing shows 83 new, 650 increased, 792 reduced and 87 closed positions. Its largest new stake was Blackrock: 52,623 shares worth $53.9M. The largest sale was DexCom, an estimated $37.7M.
By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Financials and Healthcare.
- William Blair & Company's largest Q4 2024 buy was Blackrock: 52,623 shares worth $53.9M.
- William Blair & Company added most to Block Inc in Q4 2024, an estimated $80.6M increase.
- William Blair & Company's biggest Q4 2024 reduction was DexCom, cutting an estimated $37.7M.
- William Blair & Company fully exited Rush Street Interactive in Q4 2024, selling an estimated $5.79M.
- William Blair & Company's ten largest holdings make up 25% of its $34.4B portfolio in Q4 2024.
- William Blair & Company opened 83 new positions and closed 87 in Q4 2024.
- William Blair & Company's portfolio value rose 0.96% quarter-over-quarter to $34.4B.
Based on William Blair & Company's 13F filing for Q4 2024, filed 12 Feb 2025.